HBA statistics in HP Unix

The below posts show, how to handle and trouble shoot a FC HBA in Hp unix:


# ioscan -funC fc : Command shows all the FC HBA on the box.

# fcmsutil <device_file_name> : Command show the n_port WWN and Switch port WWN.

# fcmsutil <device_file_name> stat -s : Command shows IO stats on the HBA.

# fcmsutil <device_file_name> get remote all : Command check the HBA remote connection.

# fcmsutil <device_file_name> disable : Command to disable the HBA.

# fcmsutil <device_file_name> enable : Command to enable the HBA.

Hot Swappable Disk Replacement in AIX

This posts concentrated on Disk Replacement in AIX:

We conclude the disk has failed after looking at the disk state with the "errpt" diagnosis and the PVstate as "missing"

# errpt -N hdisk#

# lspv pvname

If the disk is a part of a  mirrored volume group, follow the below steps:

1) # unmirrorvg vgname <failed_pv> : Command to unmirror  the volume group from failed physical volume.

2) # reducevg -d- f vgname <failed_pv> : Command to remove the failed disk from the volume group.

3) # lscfg -vpl <failed_pv>: Make a note of the Physical Location of the failed Physical volume.

4) # rmdev  -dl <failed_pv> : Remove the failed disk from the ODM.

5) #diag  --> Task Manager --> Hot Plug Task--> Select SCSI and SCSI RAID Hot Plug Manager -->Select Replace/Remove a Disk attached to SCSI Hot Swap Enclosure-->Select the Device to be replaced and Press Enter.